Thanks! Earlier yesterday, I decided to install the LG drivers, as well:

Dell Wireless 1538 802.11 a/g/n adapter 3.7.2.61686 9/22/2014

Qualcomm Atheros Bluetooth UART Transport Driver 2.2.0.22 1/22/2015

If at least two of us are testing this, it will make confirmation easier after the testing period. I've discovered a few interesting things after installing these drivers. The first is that, as you mentioned, ping to the router seems more variable both with and without packet coalescing, where it's about 11ms +-5ms with coalescing and 6ms +-5ms without it. In addition, apps designed for Windows 10 Modern Standby can actually remain reliably responsive in standby even with coalescing enabled on this driver and the network has not failed for 24 hours so far. I have re-enabled D0 packet coalescing to reduce battery drain, as it seems to no longer have an adverse effect.

The most interesting thing I found, however, is that in the Event Viewer, there were some new error events after installation: "WLAN Extensibility Module has failed to start. Module Path: C:\Windows\system32\athihvs.dll." This is in reference to the IHV extensions library provided by the wifi device vendor for Atheros-specific extensions. In particular, these are often used for "CCX" or Cisco Certified Extensions, when the router supports them. It's possible that this has been the issue with the drivers all along.

Perhaps, in trying to use these IHV extensions with certain routers (maybe consumer-level, non-enterprise routers) that do not fully support them, the driver was finding itself in an state that it could not handle and collapsing. While the Dell drivers were able to load these extensions, causing the corruption, the LG drivers are failing to load them, which allows the device to operate without the conflicting code.

After finding these errors, I exported and then removed the IHV extensions branch using regedit (search for athihvs.dll in regedit to find the branch under HKLM\System\CurrentControlSet) and then restarted the tablet. Since that point, there have been no more errors regarding the WLAN Extensibility Module and battery life has improved a bit more. The tablet was able to operate a responsive connected socket in the background during Modern Standby for about 11 hours today with about 10% battery drain, which is excellent.

I'm wondering now if simply removing the IHV extensions branch with the Dell drivers would have resolved this issue. Could you confirm the existence of the WLAN Extensibility Module error in your Event Viewer?

Not sure if we're discussing the 5855 but anyone have any issues with the system not coming out of sleep mode (requiring a long press of the power button) and then BSOD'ing on boot with a "DPC_WATCHDOG_VIOLATION" error? I've had this happen several times now.

Hi everyone, I recently got a DV8P (original, 5830) and I need a little help. I tried searching but couldn't find a solution so if this has been dealt with before, please be patient with me and point me in the right direction.

I received my DV8P and updated it to the Anniversary Update using the media creation tool and choosing to keep nothing. First, it did not have the option to hibernate at critical battery level. I searched around and enabled hibernate by powercfg -h on and powercfg -h size on. The problem now is that the tablet suspends randomly. I leave it to sleep and when I come back it doesn't respond to a simple tap of the power button. I have to hold it for a few seconds, the Dell boot logo comes up, and then goes straight into what I had in Windows without needing to login, as though it was hibernating. I did a battery report and it says that the system went into suspend after 30 minutes of sleep. My power settings have been set to hibernate after never. I tried to set a long time (hibernate after 480 minutes) to see if that would help but the system still suspended after 30 minutes. I can disable hibernate by powercfg -h off and it seems to be fine but then at critical battery it will shut down, and I may potentially lose my work.

Any suggestions? Thanks in advance.

Edit: there were times when it went into suspend before 30 minutes. I had just put it to sleep, did one or two things and bam, it did not wake, needing a long press of the power button.